The RT5350 chip of vocore provides two UART ports. One with full control line support (RTS/CTS/DTR/DSR/DTS) called uartf (uartfull) and another one just with RX/TX lines called uart (uartlite). vocore is configured to make use only of the uartlite port and to use it as a serial console mapped to "/dev/ttyS0".

As I needed another serial port, I worked on bringing the 2nd uart port to live as /dev/ttyS1. When you replace the files "VOCORE.dts" and "rt5350.dtsi" with versions shown below, you are done. These files add the uartfull port in a way that just lines GPIO 7-10 are used for the serial communication and keep GPIO 11 - 14 as GPIO lines.

Hi!I'm a new Vocore and linux user, where do I need to replace those files? are there in my PC or in some direction inside the vocore?. In my PC I have two paths with the dts and dtsi files you mentioned, the first in in ...openwrt/target/linux/ramips/dts and the other is in ...openwrt/buil_dir/target_mipsel.../openwrt-sdk.../target/linux/ramips/dtsThanks for helping